Granular laundry detergent composition comprising an optical brightener and a hueing dye

Abstract

The present invention is to a granular laundry detergent composition including a first optical brightener and a hueing dye. Also contemplated is a water-soluble unit dose article including this granular laundry detergent composition.

What is claimed is: 
     
         1 . A granular laundry detergent composition comprising a first optical brightener and a hueing dye,
 wherein, the first optical brightener has the following structure;   
       
         
           
           
               
               
           
         
       
     
     
         2 . The granular laundry detergent composition according to  claim 1 , wherein the hueing dye is selected from direct violet 9, direct violet 66, direct violet 99, acid violet 50, solvent violet 13, a hueing dye having the following structure; 
       
         
           
           
               
               
           
         
         wherein: R1 and R2 are independently selected from the group consisting of: H; alkyl; alkoxy; alkyleneoxy; alkyl capped alkyleneoxy; urea; and amido; R3 is a substituted aryl group; X is a substituted group comprising sulfonamide moiety and optionally an alkyl and/or aryl moiety, and wherein the substituent group comprises at least one alkyleneoxy chain that comprises an average molar distribution of at least four alkyleneoxy moieties, a hueing dye having the following structure: 
       
       
         
           
           
               
               
           
         
         wherein the index values x and y are independently selected from 1 to 10; or a combination thereof. 
       
     
     
         3 . The granular laundry detergent composition according to  claim 1 , comprising between about 0.1% and about 10% by weight of the granular laundry detergent composition of the hueing dye. 
     
     
         4 . The granular laundry detergent composition according to  claim 1 , comprising a second optical brightener wherein the second optical brightener is selected from brighteners having the following structures; 
       
         
           
           
               
               
           
         
         or a mixture thereof. 
       
     
     
         5 . The granular laundry detergent composition according to  claim 4 , wherein the weight ratio of the second optical brightener to the first optical brightener is from about 3:1 to about 8:1. 
     
     
         6 . The granular laundry detergent composition according to  claim 1 , wherein the first optical brightener is present between about 0.01% and about 5 by weight of the granular laundry detergent composition. 
     
     
         7 . The granular laundry detergent composition according to  claim 4 , wherein the second optical brightener is present between about 0.1% and about 5%, by weight of the granular laundry detergent composition. 
     
     
         8 . The granular laundry detergent composition according to  claim 1 , wherein the granular laundry detergent composition comprises a surfactant, wherein the surfactant is selected from an anionic surfactant, a non-ionic surfactant or a mixture thereof. 
     
     
         9 . The granular laundry detergent composition according to  claim 8 , wherein the anionic surfactant comprises a linear alkylbenzene sulphonate, an ethoxylated alkyl sulphate, an alkyl sulphate or a mixture thereof. 
     
     
         10 . The granular laundry detergent composition according to  claim 8 , wherein the granular laundry detergent composition comprises between about 5% and about 60% by weight of the granular laundry detergent composition of the anionic surfactant. 
     
     
         11 . The granular laundry detergent composition according to  claim 8 , wherein the non-ionic surfactant is a fatty alcohol ethoxylate. 
     
     
         12 . The granular laundry detergent composition according to  claim 11 , wherein the granular laundry detergent composition comprises between about 0.1% and about 40% by weight of the granular laundry detergent composition of the fatty alcohol ethoxylate. 
     
     
         13 . The granular laundry detergent composition according to  claim 1 , comprising a soil release polymer. 
     
     
         14 . The granular laundry detergent composition according to  claim 13 , wherein the soil release polymer is a polyester soil release polymer. 
     
     
         15 . The granular laundry detergent composition according to  claim 13 , wherein the granular laundry detergent composition comprises between about 0.1% and about 5% by weight of the granular laundry detergent composition of the soil release polymer. 
     
     
         16 . The granular laundry detergent composition according to  claim 1 , wherein the granular laundry detergent composition comprises spray dried granules, agglomerates, extrudates, flakes or a mixture thereof. 
     
     
         17 . The granular laundry detergent composition according to  claim 1 , wherein the first optical brightener and the second optical brightener are located in the same granule or located in separate granules. 
     
     
         18 . The granular laundry detergent composition according to  claim 1 , wherein the granular laundry detergent is contained within a package, wherein said package comprises cellulose-containing materials, plastic, or a mixture thereof. 
     
     
         19 . The granular laundry detergent composition according to  claim 18 , wherein the package comprises at least about 50% by weight of the package of recycled materials. 
     
     
         20 . A water-soluble unit dose article comprising the granular laundry detergent composition according to  claim 1 , wherein the water-soluble unit dose article comprises a water-soluble non-woven sheet, wherein;
 a. the non-woven sheet is shaped to create an internal compartment and the granular laundry detergent composition is housed within said compartment;
 or 
   b. the non-woven sheet is orientated into layers, the layers stacked on top of one another, and the granular laundry detergent composition is positioned between said layers.